2D chemically exfoliated hexagonal boron nitride (hBN) nanosheets doped with Ni: synthesis, properties and catalytic app
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ORIGINAL ARTICLE
2D chemically exfoliated hexagonal boron nitride (hBN) nanosheets doped with Ni: synthesis, properties and catalytic application for the treatment of industrial wastewater M. Ikram1 · J. Hassan2 · M. Imran3 · J. Haider4 · A. Ul‑Hamid5 · I. Shahzadi6 · M. Ikram7 · A. Raza2 · U. Qumar2 · S. Ali2 Received: 15 March 2020 / Accepted: 27 April 2020 © King Abdulaziz City for Science and Technology 2020
Abstract In this study, boron nitride nanosheets (BN–NS) were prepared through exfoliation of bulk BN powder and efficacious incorporation of Ni (dopant material) was achieved using hydrothermal methodology. Hexagonal phase of BN (h-BN) was detected using x-ray difractometer (XRD). The presence of used chemicals was identified by functional group analysis through fourier transform infrared spectroscope (FTIR), which indicated strong vibrations for B–N and B–N–B. Optical examination carried out through absorption spectra extracted from UV–vis. spectroscopy point out absorption at deep UV state. Raman spectra were obtained to affirm structural molecular fingerprints of BN. Excitons behavior was studied using photoluminescence (PL) spectroscope. Scanning (SEM) and transmission electron microscopes (TEM) were used to investigate morphological and microstructural features while interlayer spacing was evaluated using HRTEM micrographs. Purity of the obtained product was studied by means of EDS analysis. Catalytic activity was undertaken to inspect dye degradation which was evaluated spectrophotometrically. This study provides experimental validation to the use of two-dimensional materials, especially BN–NS, for rapid and enhanced degradation of dyes. Keywords Boron nitride · Nanosheets · Autoclave · Chemical exfoliation · Hydrothermal
Introduction Water is the most significant natural element that plays a vital role in the survival of living species, and economic development as well as in food production. Presently, a large number of countries in the world are confronted by a shortage of water. Estimated figures reveal that roughly M. Ikram, J. Hassan and J. Haider are equal contributors.
40% of worldwide food supply is produced by means of various industrial processes that ultimately depend on water. Quality of water and its seasonal availability have a direct influence on social development, economic progress and on the environment (Halder and Islam 2015; Rafiq et al. 2019). A large share of health problems encountered in the present century are related to the quality and quantity of water. Vigorous water cycles geared toward increased food production, high temperature of water,
* M. Ikram [email protected] 1
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Department of Physics, Solar Cell Applications Research Lab, Government College University Lahore, Punjab 54000, Pakistan Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Centre for Soft Matter
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